Crossover-dump.



E. E. BULL.

CROSSOVER DUMP.

APPucAnoN FILED OCT; 19. 1914.

Patented June 12,1917.

4 SHEETS-SHEET l.-

E. E. BULL.

GROSSOVER DUMP.

APPLICATION rauzo OCT. 19. 1914.

* Patented; June 12, 1917.

4 SHEETS-SHEET 2- MN I.

' mwzz,

E. E. BULL.-

CROSSOVER DUMP.

APPLIQATION FILED 001.19, 1914.

Patented June 12, 1917.

4 SHEETS-SHEET 3.

E. E. BULL-.

CROSSOVER DUMP.

APPLICATION FILED OCT-19,1914.

Patented June 12, 1917.

4 SHEETS-SHEET 4.

7 mum nnwann E. BULL, or WHI'IWELL, rnnivnssnn.

CROSSOVERr-DUMP.

Specification of Letters Patent.

Patented June 12, 191

Application filed October 19, 1914-; Serial No. 867,346.

To all whom it may concern:

Be it known that I, EDWARD E. BULL, a

I citizen of the United States, residin at Whitwell, in the county of Marion and tate of Tennessee, have invented certain new and useful Improvements in Crossover-Dumps, of which the following is a specification.

My invention relates to dumping means for mining cars, and has particular reference to a novel cross-over dump for use in that connection.

In many mines in which coal or minerals are produced, it is customary to load the material into small cars in the mines, then transfer such cars to a point of shipment or use, "the material being dumped from the cars into hoppers or larger cars. Preferably, means should be provided for dumping the cars which requires little or no attention on the part of an operator, and which needs little, if any, skilled attention. I have devised a construct-ion by means of which cars may be automatically dumped and passed to a return track, all with practi cally no attention on the part of an operator.

- Preferably also, the crossover type of dump is used, this construction facilitating much more expeditious handling of the material,

' for the reason that the cars do not twice traverse the same section of track. Other 11 objects will appear hereinafter.

Miss

fieferring more particularly to the drawings, it will be seen that I provide tracks 10, 11,'a section 12 of the track being pivoted on a transverse shaft 13 mounted on a suit able support 14; Carried by the track-section 12 are wheel stops 15 secured to shafts 16 carried in bearings 17. The shafts 16 are longitudinally movable to a limited extent,

and a coiled spring 18 is inserted between the stops and bearings 17 in order to take up or minimize to a certain extent the shock of contact of a car with the stops. The shafts 16 are likewise rotatable in order to move the stops 15 into and out of the plane of the track 12, this movement being secured by means of levers 19 keyed to the shafts, which levers are connected at their free ends to links 20, the links being likewise pivoted to a horizontal bar 21. Fixed to the middle of the bar 21 is a standard 22 having a yoke at one end, within which a long bar 23 is held. It will be seen, by reference particularly to Fig. 5, that vertical movement of the bar .23 will cause, through the instrumentality of the levers and links described, the movement of the stops 15 into and out of the plane of the track. The bar 23 is pivoted to a bracket 24: secured to the track section 12, the free end of the bar 23 nor- .mally projecting above a latch 25, best shown in Fig. 2, rigid on a support 26 and movable longitudinally through the link and lever 27, 28, by a trip lever 29, pivoted at 30 and arranged in the form of a knuckle. hen in the position of Fig. 2, the lever 29 is adapted to be contacted by a portion of an advancing car, and to thereby retract the latch 25. After the car passes over the lever 29, it is returned to normal position by the coiled spring 31. If it is desired that cars should pass over without being dumped, the

lever29 is thrown into the dotted-line position.

Thus, it will be seen from the description that when an advancing car, such as shown at 32 in Fig. 2, passes along the track, it will contact the lever 29, thus withdrawing the latch 25 and permitting the bar 23 to drop by gravity, thus throwingthe stops 15. into the plane of the track. A car will therefore contact the stops andby its momentum cause the tilting of the track section into the dumping position of Fig. 2. It will be noted that the track is pivoted at a point removed from its center of gravity, and that the stops are so arranged that the center of gravity of the car is likewise such as to oppose the elevation of the track section. Therefore the momentum of the car must cause the tilting of the track section. This is easily accomplished, and after the load has been projected from the car, the center of gravity being to the left of the pivot as viewed in Fig; 2, the car and track will return to normal position.

. The track section is held in horizontal position by means of gravity latches 33 engaging fixed stops 34. However, when the lever 23- is released from the position of Fig, 1, it will fall against a lever 35 formed on a shaft 36, and tend to rotate said shaft against a counterweight 37. Also attached to the shaft are levers 38, which lie behind the latches 33. As the bar 23 falls, the levers 38 are moved and the latches 33 are disengaged from the stops 34. When the car strikes the stops, there is therefore nothing to prevent the tilting of the track section. However, as the track section moves in the position of Fig. 2, the bar 23 passes the latch 25 on its upward movement. On the return movement of the track section and the bar 23, the bar is caught by the catch 25 and held in the position of Fig. 1. As the track section continues to descend, the stops 15 are thus forced out of the plane of the track and the. car is permitted to proceed onto the track section 11. As the car passes onto the short portion of the track '12, it would again v be tilted were it not for the engagement of the latches 33 with the stops 34. As an additional precaution, I may provide the pendent bar 39 passing through a fixed guide 40 and controlled by a cam lever 41 actuated by a foot lever 42, as best shown in Fig. 6. The car and track section may be held in any desired position by the actuation of this lever. The car 32 may haveasliding end gate 43, which gate is elevated by an arm 44 pivoted at 45, and normally held in the proper position by a" cable and weight 46. As the car passes onward, due to the downward deflection of the track, the lever 44 is merely an brushed aside, being returned to its normal position by the weight 46.

It will 'be seen by the construction described that, the dumping mechanism is practically automatic. In fact, if the foot 45 lever is eliminated, the cars may be dumped automatically without any attention on the part of the operator, the elevation or inclination of the track being such as to cause the cars to enter the dumping section, be

dumped, and then pass off the section, all by gravity action. The construction has been found efficient and satisfactory in operation, and requires no attention in service.

I claim: 1. Ina car dump in combination, a sec tion of track transversely pivoted along a line in advance of its center, wheel stops carried by said track section normally standing out of the path of the wheels of a car, a

to bar 23 pivotally supported at its forward endto said track section and operatively connected to said car stops, a latch 25 upon which the free" end of said bar 23 normally rests and by which said car stops are held in as inoperative position, said latch 25 being latches 33 out of engagement with their stops so as to release the movable section of the track and allow the same to tilt, the

rigidly supported'against downward movement so as to hold said bar up andbemg adapted to yield upward to permlt said bar to pass upward from below it, a lever 28 connected to said latch and adapted to be actuated by a forward movement of the car to withdraw said latch 25, pivoted latches33 and fixed stops 34 for engagement therewlth to hold the movable section'of the track 1n normal position, levers 38 weighted to hold them out of operation, a shaft 36 having an arm in position to be struck by said bar 23 when the latch 25 is withdrawn and to turn the shaft 36 and levers 38 in a direction to push the latches 33 out of engagement with their stops so as to release the movable section of the track and allow the same to tilt, the track section being so balanced that the momentum of the car striking the stops will tilt such section and car forward to cause the dumping of the latter, whereupon the weight of the parts will swing the track section and car back to normal position, the latches 33 engaging the stops 34 to hold the rear end of the track section down and said latch 25 serving as a stop to engage the end of the bar 23 and cause the swinging of the car stops 15 out of the path of the wheels so that the car may move forward.

2. In a car dump in combination, a section oftrack transversely pivoted along a line in advance of its center, wheel stops carried by said track section normally standing out of the path of the wheels of a car, a bar 23 pivotally supported at its forward end to said track section and operatively connected to said car stops, a latch 25 upon which the free end of said bar 23 normally rests and by which said car stops are held in inoperative position, said latch 25 being rigidly supported against downward movement so as to hold said bar up and being adapted to yield upward to permit said bar to pass upward from below it, a lever 28 connected to said latch and adapted to be actuated by a for.- ward movement of the car to withdraw said latch 25, pivoted latches 33 and fixed stops 34 for engagement therewith to hold the movable section of the track in normal posit10n, levers 38 weighted to hold them out of operation, a shaft 36 having an arm in position to be struck by said bar 23 when the latch 25 is withdrawn and to turn the shaft 36 and levers 38 in a direction to push the track section being so balanced that the momentum of the car striking the stops will tilt such section and car forward to cause the dumping of the latter, whereupon the welght of the parts will swing the track section and car back to normal position, the latches 23 engaging the stops 34 to hold the rear end of the track section down and said 130 a eeeeee latch 25 serving as a stop to engage the end into engagement with said pendent 39 to of the bar 23 and cause the swinging; efahe held the track sectlon m any deslred poslcar stops 15 out of the path of the wheels tion.

so that the car may move forward, a penchant EDWARD E. BULL. 5 1m 39 passing through a guide 4-0 and a Witnesses:

cam lever 41 normally held out of operative J. H. BARKER,

position and adapted to be manually shifted J. M; PmRcE.

fiepiezs of this patent may be ohtainefl for five cents each, by addressing the "Commissioner of Eatents,

Weshing'en, D. G. 

